2123515352 has 24 divisors (see below), whose sum is σ = 4631647860. Its totient is φ = 910077840.

The previous prime is 2123515333. The next prime is 2123515363. The reversal of 2123515352 is 2535153212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2708174 + ... + 2708957.

Almost surely, 2^2123515352 is an apocalyptic number.

It is an amenable number.

2123515352 is an abundant number, since it is smaller than the sum of its proper divisors (2508132508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123515352 is a wasteful number, since it uses less digits than its factorization.

2123515352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417151 (or 5417140 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 2123515352 is about 46081.6162042956. The cubic root of 2123515352 is about 1285.3413178823.

Adding to 2123515352 its reverse (2535153212), we get a palindrome (4658668564).

The spelling of 2123515352 in words is "two billion, one hundred twenty-three million, five hundred fifteen thousand, three hundred fifty-two".